Devices descending from K121934
10 later devices reach Tomotherapy Treatment System through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K190978 | RefleXion Medical Radiotherapy System | Reflexion Medical, Inc. | 2020 | 0 | 1 |
| +1 | K171837 | TomoTherapy Treatment Delivery System with iDMS | Accuray Incorporated | 2017 | 0 | 1 |
| +1 | K161136 | Precision Treatment Planning System | Accuray Incorporated | 2016 | 2 | — |
| +1 | K161146 | Radixact Treatment Delivery System | Accuray Incorporated | 2016 | 3 | 1 |
| +1 | K152488 | Onrad Treatment System | Accuray Incorporated | 2015 | 0 | — |
| +2 | K202412 | ClearRT Helical kVCT for the Radixact Treatment Delivery System | Accuray Incorporated | 2020 | 1 | — |
| +2 | K182687 | Motion Tracking and Compensation Feature for the Radixact Treatment Delivery System | Accuray Incorporated | 2018 | 0 | — |
| +2 | K171086 | Accuray Precision Treatment Planning System | Accuray Incorporated | 2017 | 1 | — |
| +3 | K223159 | Radixact Treatment Delivery System | Accuray Incorporated | 2023 | 0 | — |
| +3 | K212794 | Accuray Precision Treatment Planning System | Accuray Incorporated | 2021 | 0 | — |